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GAR BRAKE. No. 340,748. Patented Apr. 27, 1886.

UNITED STATES PATENT OFFICE.

EARL A. VVESCOTT AND EDMOND R. BRISTOL, OF MINNEAPOLIS, MINN.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 340,748, dated April 27, 1886.

Application filed Scptcmberflt). 1885. Serial No.1 78,50(i. (No model.)

To aZZ whom it may concern.-

Be it known that we, EARL A. WESCOTT and EDMOND R. BRISTOL, both of Minneapolis, in the county of Hennepin, and in the State of Minnesota, have invented certain new and useful Improvements in Gar-Brakes; and we do hereby declare that the following is a full, clear, and exact description thereof.

Our invention relates to atmospheric carbrakes, and will be fully described hereinafter.

In the drawings, Figure 1 is a plan view of a car-truck to which our invention is applied. Fig. 2 is a side elevation of the same. Fig. 3 is an end view, and Figs. 4 and 5 are details.

A is the truck-frame, and B are the pedestalbraces. B is the main supply-pipe, and Care branches, each of which leads to a short pipe, 0, on the truck on each side of and parallel with the main supply pipe. These short pipes are provided at each end with a cock, 0, from which projects a lever, c, to the outer end of which is connected a post or rod, D, by means of a hanger, d. This rod D is adapted to slide in guides D and D", that proj eet in from the pedestal brace and is suspended in the upper guide, D, by means of a pin, (2, or a shoulder, so that while the rod will be free to move upward it can drop down but a certain distance.

Instead of connecting the lever a positively with the rod D, as shown in Figs. 1 and 3,we may have it project over the upper end of the rod, as-shown in Fig. 2.

The lower ends of the rods D on each side of the truck are connected by a longitudinal beam or buffer, E, which is preferably convexed on its under side, where it is provided with fender-plates E-one at each end and one at the middle,- but instead of this construction we may provide each rod with a buffer-wheel, F, similar to that shown in Fig. 5, confining each wheel to the lower end of the red by means of a bolt, f, in such a manner as to leave it free to revolve on a horizontal plane.

A portion of the pipe 0 is made flexible, as shown in Fig. 3, to permit the truck to turn on its king-bolt without affecting the brakeconnection.

other accident happen which would cause either one of the wheels to leave the track,

the falling of the car would bring about contact between a beam, E, and the rail, and..the result would be a lifting upon either one or more of the rods D, and the opening of the cock 0, which latter would permit the air in the supply-pipe to escape and thus cause the setting of the brakes. The distance between the beam and rails is sufficient to insure against any trifling obstruction on the rails setting the brakes; but such a mishap as this is almost impossible when wheels F. are used instead of beams E, as a wheel on coming into contact with an obstruction would be revolved by it and would force it out of the way.

Our device is adapted for use on all known styles of trucks. It will be observed that the foot of the beam projects beyond and on either side of the path of the wheel, and, therefore, it is impossible for the wheel to leave the rail without bringing the post or foot in contact with it.

Having thus fully described our, invention, what we claim as new, and desire to secure by Letters Patent, is-

1. The combination, with the air-pipes of an atmospheric brake provided with valves, of a truck having aseries of vertically-open ating rods hung in guides thereon, the upper end of each rod connected directly with the levers of an air-pipe valve, and longitudinal beams secured to the lower ends of said rods, as set forth.

2. The combination, with the air-pipes of an atmospheric brake provided with valves, of a truck having. a series of vertically-operating rods, the upper end of each rod connecting with an air-pipe valve, and longitudinal beams convex upon their under sides and secured to thelower end of said rods, as set forth. 95

3. The combination, with the air-pipes of an atmospheric brake provided with valves, of a truck having a series of inwardly-projecting guides upon its pedestal br'aee,a series of rods vertically operative in said guides and connected to the air-pipe valves, and longitudinal beams having their respective ends 5 each secured to a rod and provided upon their under faces with fender-plates, as set forth.

In testimony that we claim the foregoing We have hereunto set our hands, at Minneapolis,

in the county of Hennepin and State of Minna sota in the presence of two witnesses.

EARL A. WESOOTT. EDMOND R. BRISTOL.

NVitnesses:

F. W. Roo'r, Trros. P. BRESNAN. 

